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问题 单项选择题

双泡征见于

A．无脑儿
B．脊柱裂
C．十二指肠闭锁
D．肛门闭锁
E．脑积水

答案

参考答案：C

解析：十二指肠声像图特点为胎儿左上腹部显示两个液性暗区，即“双泡征”，大的暗区是胃，小的部分是十二指肠。

问答题

Carpet Co was founded 10 years ago as a shareholding company, manufacturing carpets for business premises such as offices and shops. Last year the board of management decided that the company should diversify by selling its products through retail outlets to both personal and business customers. The board has recently entered into contracts on behalf of the company to purchase five shops. The new shops will be opened over the next few months, supported by a high profile advertising campaign.The proposed entry of Carpet Co into retailing has angered several shareholders, who believe that the company is taking unnecessary risks that will reduce profitability in the short-term, thereby threatening dividends and the capital value of their shares. Some shareholders have expressed a view that the board has acted unlawfully by purchasing the shops, as the objective of the company as set out in the Charter specifically refers to manufacturing carpets, but not to selling carpets in the retail sector. Others feel that the initiative will require what they consider to be an irresponsible level of expenditure on marketing and sales, with no guarantee of success.Required:

(a) Discuss the extent to which the shareholders, who object to the new initiative, will be able to prevent the board of management from implementing its plans. (7 marks)
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单项选择题

节气阀的开度处于（）属于正常开度。

A.50-55%

B.50-56%

C.60-65%

D.60-70%
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